发明申请
- 专利标题： WAVELENGTH CONVERSION LASER LIGHT SOURCE AND IMAGE DISPLAY APPARATUS
- 专利标题（中）： 波长转换激光光源和图像显示设备
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申请号： US13139586申请日： 2010-10-19
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公开(公告)号： US20110255149A1公开(公告)日： 2011-10-20
- 发明人: Koichi Kusukame , Tetsuro Mizushima , Nobuyuki Horikawa , Hiroyuki Furuya , Tomoya Sugita , Shinichi Kadowaki
- 申请人： Koichi Kusukame , Tetsuro Mizushima , Nobuyuki Horikawa , Hiroyuki Furuya , Tomoya Sugita , Shinichi Kadowaki
- 优先权： JP2009-242008 20091021; JP2010-060586 20100317
- 国际申请： PCT/JP2010/006185 WO 20101019
- 主分类号： G02F1/355
- IPC分类号： G02F1/355 ; G02F1/35
摘要：
A wavelength conversion laser light source 100 has: a laser light source configured to generate fundamental wave laser light; and a wavelength conversion element 101 provided with a periodic polarization reversal structure configured to convert the fundamental wave laser light which is incident onto the periodic polarization reversal structure into different laser light in wavelength wherein the wavelength conversion element includes different polarization reversal regions in period; and a polarization reversal axis 102 of at least one of the polarization reversal regions is inclined with respect to an incident optical path of the fundamental wave laser light on the wavelength conversion element.